ZGW1-1.5/3150 DC Disconnector (3150A)
Технические характеристики
| Модель | ZGW1-1.5/3150 |
|---|---|
| Стандарт | IEC 61992-3 (DC disconnectors for railway fixed installations) and metro DC traction power supply technical conditions |
| Ном. напряжение | 1.5kV DC |
| Конструктивная скорость | N/A (fixed installation equipment) |
| Материалы | Dedicated DC arc-extinguishing contact system; горячее цинкование steel structure; high-strength insulation |
| Монтаж | Mounted in traction substations or trackside boxes; motorized or manual operation |
The ZGW1-1.5/3150 is a 1.5kV DC, 3150A outdoor disconnector designed for electrical isolation in metro and urban rail DC traction power supply systems. It isolates sections of the 1500V DC overhead contact system for maintenance and operational switching.
The switch is designed with reference to IEC 61992-3 (Railway applications — Fixed installations — DC switchgear — Part 3: Disconnectors, switch-disconnectors and earthing switches) and relevant metro DC traction power supply technical specifications. A dedicated DC arc-extinguishing contact system ensures reliable breaking under DC load conditions; the горячее цинкование steel structure and high-strength insulation suit long-term outdoor service from -40°C to +70°C at altitudes up to 4,000 m.
Installation options include mounting inside traction substations or in trackside boxes, with motorized or manual operating mechanisms available to match the automation level of the line.
Henan Chuangwit Railway Equipment Co., Ltd. supplies the ZGW1 series with type test documentation and engineering support for metro projects worldwide.
Frequently Asked Questions
What is a DC disconnector used for in metro systems?
It isolates sections of the 1500V DC traction power network — for example at substations or between line sections — so maintenance can be performed safely without de-energizing the whole line.
Which standard does the ZGW1-1.5/3150 follow?
It is designed with reference to IEC 61992-3 for DC disconnectors, plus metro DC traction power supply technical conditions.
Motorized or manual operation?
Both are available. Motorized mechanisms support remote control and automation retrofits; manual mechanisms suit simpler installations.
Эксплуатационные характеристики
Условия эксплуатации
Long-term outdoor service in metro DC traction power environments from -40°C to +70°C, altitudes to 4,000 m.
Механические характеристики
Hot-dip galvanized steel frame with high-strength изоляторs; robust mechanism for frequent switching duty.
Электрические характеристики
Dedicated DC arc-extinguishing contacts provide reliable breaking at 1500V DC / 3150A, designed per IEC 61992-3.
Применение
Metro Substations
DC isolation inside traction substations.
Trackside Boxes
Section isolation along the line in compact enclosures.
Outdoor Service
Galvanized structure for open-air installations.
Cold Regions
Operation down to -40°C.